Gas Law Links

1. Kahn Acedemy
2. Gas Laws
3. Kinetic Molecular Theory and Gas Law
4. Gas Laws
5. Ideal Gas
6. The Ideal Gas Law: Crash Course Chemistry #12

Links I found helpful when reviewing on my free time!

Airbag Lab

We were given the challenge to make a theoretical airbag with a bag, vinegar, and baking soda. It is tricky because we will need to use just the right amount of vinegar and baking soda to inflate the bag to the right amount... Not too little and not too much. To do this we had to find the volume of the random bag given to us. To do this, we filled the bag with water and poured it into a graduated cylinder to obtain an exact volume. After this we could use some of the gas law formulas to calculate the mols of CO2 needed to inflate the bag. 

I had a fairly small bag and needed about .01 mols of CO2.. So about .87 grams of baking soda and 15mL of vinegar. 

The experiment went well and I was able to pass the lab by inflating the bag to the right amount. Here is a photo of what the experiment looked like. 

https://91b6be3bd2294a24b7b5-da4c182123f5956a3d22aa43eb816232.ssl.cf1.rackcdn.com/contentItem-1775800-8789806-zkm4rd3o03jlr-or.jpg

Post Gas Law Quiz

Another doozy thrown at us by Mrs. Frank. Going into the quiz, I felt pretty confident and felt like I knew the material well enough. Once I started the quiz I immediately started questioning myself on the conceptual questions given to us. They were tricky and maybe a little more reading from the book would've helped. All is well though, moving on mentally to the test. Need to do well!

https://healingcrystalslove.files.wordpress.com/2014/08/bigstock-emoticon-pointing-to-his-eyes-45241642.jpg

Avagadro's and Combined Laws

Avagadro's Law is another law that we just recently learned. It is a little more complicated to work out mathematically but it makes sense if you think about it. It is the relationship between the mols of a gas and the volume of it: V1/n1=V2/n2(n=mols). Here is a photo explaining the relationship in visual terms.

http://chemwiki.ucdavis.edu/@api/deki/files/8681/=Avogadro.jpg?revision=1

The next law we learned is the Combined Laws. This essentially combines all the laws we have learned and puts it into one fat equation. It is getting more complicated because there is a lot of information that needs to be taken out of a problem and filtered. Here is a photo with more details. 

http://thescienceclassroom.org/wp-content/uploads/2013/04/Combined-Gas-Law.png

Boyle's and Charle's Law

Our new unit is Gas Laws. So far we have learned a few of the gas laws and I'd like to reflect on the first couple. The first is Boyle's Law, he discovered the relationship gases share between volume and pressure. The equation is simply P1V1=P2V2. It is a simple proportion that makes sense when you think about it. Here is a simple photo to explain the relationship.

https://www.grc.nasa.gov/www/k-12/airplane/Images/boyle.gif

The next law we learned about is Charles' Law. Charles' Law shows the relationship that Temperature and Volume share: V1/T1=V2/T2. It is also simple to think about, When something is heated their particles get more excited and thus their volume is increased. Here is another photo that explains it simply. 

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6G_Jt0_9y3LtDq_T2xkH7pNjRkcB39o0TOOo6Ej_m-BugOlwq-TliuzG2862vuEhEXT1_AMyxQN1P8jMBZSsHQZqh_y6LEy50mLqS_oDJ3tBlDHvJdLquvXkCFR6LFjijKuCH3NL9exbl/s1600/CL+Double.png

Post Energy Test

The test wasn't terrible for me. It was skeptical because we were given 30 minutes to do 22 question over the unit and it counted as 100 points. So you were given very little wiggle room with the amount of questions you could miss. The practice tests Frank put on schoology really helped, the format of the questions were pulled directly from that. In the end, I was able to pull off an A which was huge to my quarter grade.

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTRswvTftRi2f42ClCvwGvxDsAZBpQz7EG0Ncb5hdmNV1GATXD3

Pre Energy Test

Here are some links that I used for the test! They helped me review a lot of the material.


Phase Change
Thermodynamics
MCAT Formula
Practice Quiz
Phase Change Graph
Energy Review

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http://www.kentchemistry.com/images/links/matter/HeatCool.gif